from datetime import datetime, timedelta
now = datetime.now(tz=None)  #时间格式
now1 = now.strftime("%Y/%m/%d")      #时间格式转化为str格式的formate
now2 = now.strptime(now1,"%Y/%m/%d") #时间格式转化为时间格式的formate
now3 = now.timestamp()               #是一个浮点数  时间格式到浮点数
now4 = datetime.fromtimestamp(now3, tz=None)  #浮点数到时间格式4


print(type(now4))

n = input("几天后提醒？")
n = int(n)
now5 = now + timedelta(days=n,milliseconds=30)
print(now5)